Epoch Time Peculiarity

[Chris Ivey]

All,
I am running HP OpenView on my HPUX 10.20 system, and noticed something rather odd in my trap logs. My epoch time for Mon Oct 1 2001, 00:00:00 shows as "1001908800". When I do the math calculations, I get that to mean that 11,596.16666666666667 days have passed since Thu Jan 1 1970 00:00:00. However, that ".16666666666667" extra on the division accounts for an extra 4 hours. Does anyone out there know why my epoch time would show an extra 4 hours? Thanks!

[harry d brown jr · Accepted solution]

You aren't in GMT time zone so add x+ of hours.

live free or die
harry

[John Bolene]

Are you by chance in a -4 timezone? East Coast US?

I think epoch time is by GMT.

[Patrick Wallek]

Is epoch time calculated from GMT? Are you maybe 4 hours behind GMT? Thus it would have actually been Mon Oct. 31 at 04:00?

[A. Clay Stephenson]

Hi:

You used the localtime() function rather than the gmtime() function to calculate the epoch seconds.

[Craig Rants]

Chris,
I ran
root@host: /roots # echo "0d1001908800=Y" | adb

And the result was 2001 Sep 30 22:00:00

I am in MST, so if you are in EST, then the GMT difference given by Harry makes complete sense.

Good Luck,
C

[harry d brown jr]

Verizon, as in the phone services company or a spin off?


live free or die
harry

[Chris Ivey]

Verizon, as in the phone company. I am in the Data Services branch....

[harry d brown jr]

Chris,

Good keep those computers up - except of course those billing ones (hehehe). I have both home and cell phone from verizon.

live free or die
harry